Header install
Thread Starter
Drifting
Joined: Jun 2006
Posts: 1,954
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From: New Rochelle, NY New York
Header install
]OKAY!, Had my new set of LG Street Headers installed yesterday. Have a problem though. Car runs like crap now!!!! Installed new wires and plugs (JD Motors did the install/Jack). I was there the whole time and nothing went in wrong (have some great pics!). Only thing that did not go in was the rear O2 sensors and I'm running now without cats. Car surges and runs real rough -at times it seems to want to stall,rpms drop to 500 then back up to 900. Any ideas? I'm having Vette Dr do a dyno tune tomorrow. Just like to know if someone else experienced this and the tune fixed it...I'm very nervous. Car ran perfect before the install.
Don
Don
Thread Starter
Drifting
Joined: Jun 2006
Posts: 1,954
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From: New Rochelle, NY New York
Thanks, But I am sure they are. I watched every move and I saw the mechanic do it correctly. He even took his time running the wires so it would be very neat. I'm going back there today to have him look at it
Burning Brakes
Joined: Oct 2003
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From: peabody ma
its a lot easier to do than I thought.....and most people that have trouble with starting after a header install have them crossed....
Tech Contributor
Joined: Jan 2007
Posts: 19,471
Likes: 1,171
From: Dyer, IN
]OKAY!, Had my new set of LG Street Headers installed yesterday. Have a problem though. Car runs like crap now!!!! Installed new wires and plugs (JD Motors did the install/Jack). I was there the whole time and nothing went in wrong (have some great pics!). Only thing that did not go in was the rear O2 sensors and I'm running now without cats. Car surges and runs real rough -at times it seems to want to stall,rpms drop to 500 then back up to 900. Any ideas? I'm having Vette Dr do a dyno tune tomorrow. Just like to know if someone else experienced this and the tune fixed it...I'm very nervous. Car ran perfect before the install.
Don
Don
Thread Starter
Drifting
Joined: Jun 2006
Posts: 1,954
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From: New Rochelle, NY New York
I really don't understand how you can swap the O2's. If you look at the pic you will see each connection hanging at each pipe. We did one at a time and each one went into the pipe it was hanging near. Anyways, cald ECS and going there today (hopefully..need to call them back in an hour to make sure).
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Le Mans Master
Joined: Sep 2003
Posts: 6,276
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From: Farmington CT
Cruise-In VII Veteran
I really don't understand how you can swap the O2's. If you look at the pic you will see each connection hanging at each pipe. We did one at a time and each one went into the pipe it was hanging near. Anyways, cald ECS and going there today (hopefully..need to call them back in an hour to make sure).
Thread Starter
Drifting
Joined: Jun 2006
Posts: 1,954
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From: New Rochelle, NY New York
Well, I,m not a mechanic. It looked as if each plug hung near each pipe. It was installed that way (see last pic). I don't have a lift to verify what you say so when I bring it in for a tune they can look at it. Thanks though for the heads up and I will mention this. It does sound great though when I start her up..lol
Burning Brakes
Joined: Oct 2003
Posts: 816
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From: peabody ma
I really don't understand how you can swap the O2's. If you look at the pic you will see each connection hanging at each pipe. We did one at a time and each one went into the pipe it was hanging near. Anyways, cald ECS and going there today (hopefully..need to call them back in an hour to make sure).
I think its because they crisscross each other and the wire from the sensor looks like its on the opposite side when they are installed into the pipe..
I never started mine but after reading many threads on "car running like crap after header install" posts i decided to check mine while it was still up on stands in the garage, and sure enough they were crossed...felt like a nitwit, but i guess it has happened to a lot smarter people than me...
at least thats what i keep telling myself...
Thread Starter
Drifting
Joined: Jun 2006
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From: New Rochelle, NY New York
Thanks again guys
Drifting
Joined: May 2005
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From: Littleton Colorado
Le Mans Master
Joined: Mar 2002
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St. Jude Donor '17
Get those clamps to the side ASAP